1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
3*4882a593Smuzhiyun * reserved.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * This software is available to you under a choice of one of two
6*4882a593Smuzhiyun * licenses. You may choose to be licensed under the terms of the GNU
7*4882a593Smuzhiyun * General Public License (GPL) Version 2, available from the file
8*4882a593Smuzhiyun * COPYING in the main directory of this source tree, or the NetLogic
9*4882a593Smuzhiyun * license below:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or without
12*4882a593Smuzhiyun * modification, are permitted provided that the following conditions
13*4882a593Smuzhiyun * are met:
14*4882a593Smuzhiyun *
15*4882a593Smuzhiyun * 1. Redistributions of source code must retain the above copyright
16*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer.
17*4882a593Smuzhiyun * 2. Redistributions in binary form must reproduce the above copyright
18*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer in
19*4882a593Smuzhiyun * the documentation and/or other materials provided with the
20*4882a593Smuzhiyun * distribution.
21*4882a593Smuzhiyun *
22*4882a593Smuzhiyun * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
23*4882a593Smuzhiyun * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24*4882a593Smuzhiyun * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25*4882a593Smuzhiyun * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
26*4882a593Smuzhiyun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27*4882a593Smuzhiyun * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28*4882a593Smuzhiyun * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
29*4882a593Smuzhiyun * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30*4882a593Smuzhiyun * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
31*4882a593Smuzhiyun * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
32*4882a593Smuzhiyun * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33*4882a593Smuzhiyun */
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun #include <linux/types.h>
36*4882a593Smuzhiyun #include <linux/serial_reg.h>
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun #include <asm/mipsregs.h>
39*4882a593Smuzhiyun #include <asm/setup.h>
40*4882a593Smuzhiyun #include <asm/netlogic/haldefs.h>
41*4882a593Smuzhiyun #include <asm/netlogic/common.h>
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun #if defined(CONFIG_CPU_XLP)
44*4882a593Smuzhiyun #include <asm/netlogic/xlp-hal/iomap.h>
45*4882a593Smuzhiyun #include <asm/netlogic/xlp-hal/xlp.h>
46*4882a593Smuzhiyun #include <asm/netlogic/xlp-hal/uart.h>
47*4882a593Smuzhiyun #elif defined(CONFIG_CPU_XLR)
48*4882a593Smuzhiyun #include <asm/netlogic/xlr/iomap.h>
49*4882a593Smuzhiyun #endif
50*4882a593Smuzhiyun
prom_putchar(char c)51*4882a593Smuzhiyun void prom_putchar(char c)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun uint64_t uartbase;
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun #if defined(CONFIG_CPU_XLP)
56*4882a593Smuzhiyun uartbase = nlm_get_uart_regbase(0, 0);
57*4882a593Smuzhiyun #elif defined(CONFIG_CPU_XLR)
58*4882a593Smuzhiyun uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
59*4882a593Smuzhiyun #endif
60*4882a593Smuzhiyun while ((nlm_read_reg(uartbase, UART_LSR) & UART_LSR_THRE) == 0)
61*4882a593Smuzhiyun ;
62*4882a593Smuzhiyun nlm_write_reg(uartbase, UART_TX, c);
63*4882a593Smuzhiyun }
64